Fix spinner

Author: kishikawakatsumi

Public/index.html

@@ -80,7 +80,9 @@
           <button id="run-button" type="button" class="btn btn-primary btn-sm rounded-pill px-3 m-1 disabled"
             aria-label="Update">
             <span id="run-button-icon" class="fa-solid fa-play fa-fw"></span>
-            <span id="run-button-spinner" class="fa-duotone fa-spinner-third fa-spin fa-fw d-none"></span>
+            <div id="run-button-spinner" class="d-inline-block d-none">
+              <span class="fa-duotone fa-spinner-third fa-spin fa-fw"></span>
+            </div>
             <span class="px-1">Update</span>
           </button>
           <div class="dropdown d-inline-block">